Thanks. Loved Halo Infinite story campaign. Overall, a 9.5/10 for me and my 2021 game of the year. Note that this is just for the campaign as im not an online co-op/multi-player gamer whatsoever.
As for Redfall, I believe that it gets delayed for a few reasons. First, the Fall/Holiday season will be packed first party and third party wise. If the four games I list all release in Sept/Oct/Nov, Microsoft doesn't need a fifth game. And if one of the four doesn't release, my bet would be AOE IV only because the console port isn't ready. Even taking this into account, they still don't need Redfall.
Second, it's said to be a Borderlands type looter shooter which if true, means that they will need post launch content. If that's not ready to go to where they're ahead by a few months, then no reason in releasing the game because there would be nothing new for it and could turn into a Halo Infinite situation which can easily be avoided. Third, with Starfield being 11/11/22, I don't see October simply because vast majority will be getting ready for Starfield and could be playing third party games such as Gotham Knights which is late October. Fourth and this is higher up on my personal list is that for 2021 and 2022, the first half has been completely empty in regards to a Microsoft first party game. Delaying Redfall to February 2023 solves this issue because three years in a row would be very disappointing in my opinion.